I'm pushing a stream to the instance at 512x288, 800 Kbps, H.264/AAC, using a stream name of "dan". If I understand the docs properly, the transcoder should be making streams available at lower bitrates and (some of them) frame sizes. Specifically, I should be seeing streams named dan_800p, dan_600p, dan_450p, dan_250p, and dan_150p. And indeed I am - if I go to JWPlayer's wizard page and enter the appropriate arguments I am able to watch streams at each of these stream names.

What I don't understand, though, is that if I use rtmpdump from my linux box to capture these streams, I appear to be getting 800 Kbps each time. For example, stream dan_150p should deliver a 256x144 stream at 150 Kbps. But rtmpdump says: